[go: up one dir, main page]

GB1414174A - Process for preparing block copolymers containing a-methyl styrene - Google Patents

Process for preparing block copolymers containing a-methyl styrene

Info

Publication number
GB1414174A
GB1414174A GB5722572A GB5722572A GB1414174A GB 1414174 A GB1414174 A GB 1414174A GB 5722572 A GB5722572 A GB 5722572A GB 5722572 A GB5722572 A GB 5722572A GB 1414174 A GB1414174 A GB 1414174A
Authority
GB
United Kingdom
Prior art keywords
block
styrene
forming
elastomeric block
number average
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5722572A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stamicarbon BV
Original Assignee
Stamicarbon BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stamicarbon BV filed Critical Stamicarbon BV
Publication of GB1414174A publication Critical patent/GB1414174A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G81/00Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
    • C08G81/02Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers at least one of the polymers being obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C08G81/021Block or graft polymers containing only sequences of polymers of C08C or C08F
    • C08G81/022Block or graft polymers containing only sequences of polymers of C08C or C08F containing sequences of polymers of conjugated dienes and of polymers of alkenyl aromatic compounds
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F297/00Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
    • C08F297/02Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Graft Or Block Polymers (AREA)

Abstract

1414174 Block copolymers STAMICARBON BV 12 Dec 1972 [15 Dec 1971] 57225/72 Heading C3P Elastomeric block copolymers of the general formula A-B-C, at least blocks A and B being linked by styrene units in which A is a non- elastomeric block derived from α-methylstyrene units and having a number average M.Wt. of 2000 to 100,000, B is an elastomeric block with a number average M.Wt. of 15,000 to 250,000, and C is a non-elastomeric block with a number average M.Wt. of 2000 to 100,000, and wherein A and C are identical if a linkage agent is used, are prepared by forming a polymer block from α-methyl-styrene at below 0‹ C. with the aid of a monofunctional anionic initiator, reacting the block so formed at below 0‹ C. with 1-100 molar proportion of styrene based on the initiator, forming an elastomeric block at above 0‹ C. and then forming the A-B-C copolymers by adding a linkage agent or by forming a further non-elastomeric block. In examples sec.-butyl lithium is used an initiator and 1,3-butadiene used to form the elastomer block. Amyl acetate, divinyl benzene and methylenediphenylene diisocyanate are used as linkage agents to give as product an α - methyl styrene - styrene - butadienestyrene-α-methyl styrene block copolymer.
GB5722572A 1971-12-15 1972-12-12 Process for preparing block copolymers containing a-methyl styrene Expired GB1414174A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7117171A NL7117171A (en) 1971-12-15 1971-12-15

Publications (1)

Publication Number Publication Date
GB1414174A true GB1414174A (en) 1975-11-19

Family

ID=19814698

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5722572A Expired GB1414174A (en) 1971-12-15 1972-12-12 Process for preparing block copolymers containing a-methyl styrene

Country Status (8)

Country Link
JP (1) JPS5037079B2 (en)
BE (1) BE792795A (en)
CA (1) CA1010184A (en)
DE (1) DE2261214A1 (en)
FR (1) FR2165530A5 (en)
GB (1) GB1414174A (en)
IT (1) IT974500B (en)
NL (1) NL7117171A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2169905A (en) * 1984-12-13 1986-07-23 Japan Synthetic Rubber Co Ltd Conjugated diene based rubber composition

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4260694A (en) * 1979-11-29 1981-04-07 Mobil Oil Corporation p-Methylstyrene diene block copolymers
FR2514011A1 (en) * 1981-10-02 1983-04-08 Philippe Teyssie CIPO-Patent
JP5168460B2 (en) * 2007-09-28 2013-03-21 株式会社クラレ Block copolymer and method for producing the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1189767A (en) * 1967-04-01 1970-04-29 Polymer Corp Block Copolymers and their preparation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2169905A (en) * 1984-12-13 1986-07-23 Japan Synthetic Rubber Co Ltd Conjugated diene based rubber composition
US4742117A (en) * 1984-12-13 1988-05-03 Japan Synthetic Rubber Co., Ltd. Conjugated diene based rubber composition
GB2169905B (en) * 1984-12-13 1989-10-18 Japan Synthetic Rubber Co Ltd

Also Published As

Publication number Publication date
NL7117171A (en) 1973-06-19
FR2165530A5 (en) 1973-08-03
CA1010184A (en) 1977-05-10
DE2261214A1 (en) 1973-06-20
BE792795A (en) 1973-06-15
IT974500B (en) 1974-06-20
JPS5037079B2 (en) 1975-11-29
JPS4867381A (en) 1973-09-14

Similar Documents

Publication Publication Date Title
ES342346A1 (en) PROCEDURE FOR OBTAINING POLY-TIRENE COMPOSITIONS OF IMPROVED PHYSICAL PROPERTIES.
GB1496013A (en) Selectively hydrogenated block copolymer composition suitable for use in tubing or elastomeric rods
GB1297331A (en)
GB1474618A (en) Concentrated latex of synthetic rubbers and the method for the preparation thereof
GB1189767A (en) Block Copolymers and their preparation
GB1479465A (en) Process for preparing block copolymers containing alpha-methyl styrene
GB1414174A (en) Process for preparing block copolymers containing a-methyl styrene
GB1262117A (en) A process for the production of synthetic rubber mixtures
GB1278708A (en) Pivalolactone-diene block copolymers and their preparation
GB1359740A (en) Polypropylene compositions
ES449124A2 (en) Polymerization process
ES449942A1 (en) High-impact polystyrene composition and production thereo
ES406922A1 (en) Graft polymers of vinyl chloride on unsaturated olefinic elastomers and process for the preparation thereof
GB1271760A (en) Block copolymer - polypropylene compositions
GB1519400A (en) Method for producing a high impact polystyrene
GB1365506A (en) Preparation of acrylonitrile copolymers
GB1229066A (en)
GB1444680A (en) Preparation of block polymers
US3817955A (en) Preparation of polymers using complexes of organomagnesiums with certain hydrides as catalysts
US3819767A (en) Process for producing block copolymer
GB1226234A (en)
GB1483063A (en) Chlorbrominated polymers
US4004070A (en) Viscosity reduction of organopolylithium-initiated polymer solutions
GB1468669A (en) Process for the production of polybutadiene
GB1155319A (en) Process for Isolating Low-Ash Liquid Polymers from Ziegler Polymerisation Mixtures.

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee